"Martin E. Koss" <[EMAIL PROTECTED]> wrote:
> I started a table with a varchar filed of 11 characters for a column that
> would hold data such as 0.27; 11; 0.6; 1; 5; 7.5; 11.2; etc
> I wasn't sure if a 'number' field would work. Now I want to list the
values
> in this column and they do not list numerically, for example: if we had
> 0.27; 0.6; 1; 5; 7.5; 11; then 11 would come before 5 and 7.5
> (alphanumerically).
>
> What I need is them to list numerically, so they would list like:
> 0.27
> 0.6
> 1
> 5
> 7.5
> 11
> 11.2
>
> Any advice on what to change the field type to or how to convert it at the
> time of querying via PHP would be great. Thanks.
Use an ALTER TABLE statement. Something like the following:
ALTER TABLE table_name MODIFY field_name DECIMAL(4,1) UNSIGNED
Make sure you choose a numeric type that is appropriate. See the online
manual for options. If you're worried you might ruin your data with this
conversion first create a copy of the table and experiment on it instead.
CREATE TABLE my_copy SELECT * FROM original_table
Note that it won't copy the indexes, but it will create a copy of the table.
--
Steve Werby
President, Befriend Internet Services LLC
http://www.befriend.com/
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